Hello,
I am pretty new to the knitting community. I have been teaching myself using youtube or kntting sites like this but I have finally come across something that I can't seem to understand or find. The intructions say:
"at this point I would place all remaining stiches on a waste thread. As you work the fingers, keep the thread in place in case you need to rework any of the fingers"

You're going to put those stitches 'on hold' for later. Use a tapestry needle or large-eyed needle and pull a strand of contrasting color yarn through the stitches and then remove the knitting needle. Now the stitches will be held on the spare yarn.

When you get to the point where you need these stitches, you reinsert your knitting needle through without losing stitches. This pattern suggests leaving the spare yarn in the stitches as you finish the fingers in case you need to rip back--your spare yarn will serve as a lifeline that you can rip out to and not lose stitches.